﻿<!DOCTYPE html>
<html lang="en">
<head>
    <title>使用parseFloat()函数</title>
</head>
<body>
    <script>
        document.write(parseFloat("10") + "<br>");
        document.write(parseFloat("10.00") + "<br>");
        document.write(parseFloat("10.33") + "<br>");
        document.write(parseFloat("34 45 66") + "<br>");
        document.write(parseFloat("   60   ") + "<br>");
        document.write(parseFloat("40 years") + "<br>");
        document.write(parseFloat("He was 40") + "<br>");
    </script>
</body>
</html>
